Hemoperfusion apparatus screen

The utility model discloses a hemoperfusion apparatus screen, which comprises an annular screen frame (1) and a sieve (2). The hemoperfusion apparatus screen is characterized in that a circle of bosses (3) is arranged on the upper portion of the external circumference of the screen frame (1). The hemoperfusion apparatus screen is simple in structure and unique in design, and has better sealing effect because of the circle of bosses disposed on the upper portion of the external circumference of the screen frame, so that absorbent inside a hemoperfusion apparatus cannot easily leak through the gap between the screen frame and the inner wall of the hemoperfusion apparatus to enter circulating blood and pollute the blood.